Orioles left-hander Brian Matusz said he is preparing himself mentally to start Wednesday’s game against the Pittsburgh Pirates, but he won’t know for sure until he gets through the night with a swollen and bruised nose.

“In talking with the doctor, he said there could be some swelling throughout the night,” Matusz said. “We want to … see how it goes, see how the nose reacts tonight. But right now it feels pretty good, but we’ll wait until tomorrow to see how it feels.”

The Orioles are considering pushing Matusz's start back, perhaps as far as Friday, but a final determination will not come until he is re-evaluated Wednesday.

Matusz was bunting in the indoor cage Tuesday afternoon in preparation for the upcoming interleague series -- on the road, so pitchers will hit -- when he bunted a ball that struck his nose.X-Raystaken later showed no break, but there was considerable swelling.

“Bunting off the machine and just fouled one straight off my nose. It was one of those things. It was unfortunate. It was no one’s fault, it just happened,” Matusz said. “Nose was bleeding. We were able to stop that right away. Luckily [athletic trainer] Brian Ebel was actually in the cage, so we were able to get on it right away. Took X-Rays, it was negative and the swelling has actually gone down a lot over the last few hours, putting ice on it every hour.”

Matusz said he would attempt to sleep with his head slightly elevated Tuesday night, in hopes that the swelling may continue to subside.

Orioles manager Buck Showalter spoke with Matusz after the game and they decided not to make a final decision on who will start Wednesday until they reconvene at the park.

“We’ll wait and see how it feels tomorrow,” Showalter said. “But we have got things in place to cover it if we go that direction [of another starter].”

Jake Arrieta and Dana Eveland are both fill-in possibilities; Miguel Gonzalez could be called up from Triple-A, but would only be available if the Orioles placed someone on the disabled list.

Outfielder Endy Chavez could be heading that way. He left in the sixth inning with a hamstring strain after heading from first to second on a Pittsburgh Pirates’ throwing error. Showalter said Chavez will be re-evaluated Wednesday.

“Hamstring, not real sure whether it’s a DL-able one and, unfortunately, you don’t really get a feel for it until the next day. So we’ll see. It’s going to be a challenge,” Showalter said. “It’s just a matter of whether you think it’ll heal within a certain period of time or if it’s something that’s that bad. But on a hot, sticky night like this, the first thought is hoping it’s more cramp than anything else. But usually it’s not.”

If Chavez is placed on the DL, the Orioles could bring back Steve Tolleson, who was demoted Tuesday. Or they could bring up another outfielder or a starting pitcher.